I am young grug who didn't use debuggers much until last year or so.

What sold me on debugger is the things you can do with it

    * See values and eval expressions in calling frames.
    * Modify the course of execution by eval'ing a mutating expression.
    * Set exception breakpoints which stop deep where the exception is raised.

One other such tool is REPL. I see REPL and debugger as complementary to each other, and have some success using both together in VSCode, which is pretty convenient with autoreload set. (https://mahesh-hegde.github.io/posts/vscode-ipython-debuggin...)